Replacing The Battery; Figure 8-9. Inserting An Sec Cartridge And Heat Sink Assembly - Dell PowerEdge 4200 Installation And Troubleshooting Manual

5. Verify that the cartridge release latches on the
guide bracket assembly are pulled out (see Fig-
ure 8-9).
metal
clips (2)
supports
Figure 8-9. Inserting an SEC Cartridge and Heat
Sink Assembly
R
eplacing the Battery
The system battery maintains system configuration, date,
and time information in a special section of memory
when the system is turned off.
The operating life of the battery ranges from two to five
years, depending on how the system is used (for example,
if the system is on most of the time, the battery gets little
use and thus lasts longer). The battery may need
replacing if an incorrect time or date is displayed during
8-10 Dell PowerEdge 4200 Systems Installation and Troubleshooting Guide
temperature
sensor cable
release
latches
temperature
sensor connector
the boot routine along with a message such as the
following:
Time-of-day not set — please run SETUP
program
Strike the F1 key to continue, F2 to run
the setup utility
or
System CMOS checksum bad — Run SETUP
Strike the F1 key to continue, F2 to run
the setup utility
or
Invalid configuration information — please
run SETUP program
Strike the F1 key to continue, F2 to run
the setup utility
To determine if the battery needs replacing, reenter the
time and date through the System Setup program. Turn
off the system for a few hours, and then turn it on again.
Enter the System Setup program. If the date and time are
not correct in the System Setup program, replace the
battery.
NOTES: Some software may cause the system time to
speed up or slow down. If the system seems to operate
normally except for the time kept in the System Setup pro-
gram, the problem may be caused by software rather than
by a defective battery.
If the system is turned off for long periods of time (for
weeks or months), the NVRAM may lose its system con-
figuration information. This situation is not caused by a
defective battery.
The system can be operated without a battery; however,
the system configuration information maintained by the
battery in NVRAM is erased each time the computer is
turned off. Therefore, the system configuration informa-
tion must be reentered and the options reset each time the
system boots until the battery is replaced.
The battery is a 3.0-volt (V), coin-cell CR2450-type bat-
tery. To remove the battery, follow these steps:
1. If possible, enter the System Setup program and
make a printed copy of the system setup screens.
See Chapter 4, "Using the System Setup Program,"
in the User's Guide for instructions.